90057894 has 24 divisors (see below), whose sum is σ = 184636680. Its totient is φ = 29283840.

The previous prime is 90057893. The next prime is 90057901. The reversal of 90057894 is 49875009.

It is a super-2 number, since 2×90057894² = 16220848543430472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90057893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5622 + ... + 14550.

It is an arithmetic number, because the mean of its divisors is an integer number (7693195).

Almost surely, 2^90057894 is an apocalyptic number.

90057894 is an abundant number, since it is smaller than the sum of its proper divisors (94578786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90057894 is a wasteful number, since it uses less digits than its factorization.

90057894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016 (or 8975 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 90057894 is about 9489.8837716802. The cubic root of 90057894 is about 448.2365453354.

It can be divided in two parts, 90057 and 894, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 90057894 in words is "ninety million, fifty-seven thousand, eight hundred ninety-four".